Explanation:
2) encourage people to give their time and money to the war effort....
In telecommunication, it is hard to deal with as it involves communication and interactions with other people. The major concern about employees and managers is that because of it's difficulty, it makes managers lose their control to their employees that could complicate things and affect the people working in the area. That is why it is the major concern in telecommunication.
The correct answer is mixtures.
Salt water, vinegar, bronze, air, and beach sand are all mixtures, some of them more homogeneous or heterogeneous than others. A mixture, as the name itself says, is a blend of more than one element. So salt water is a mixture of salt and water, vinegar is a mixture of acetic acid and water, bronze is a mixture of copper and other metals, air is a mixture of nitrogen, oxygen, and other elements, and beach sand is a mixture of sand and water.
<span>The question says.' a child development associate certificate is initially valid for 3 years. After that it needs to be renewed every............. The correct option is D. The certificate expire after every three years and thus has to be renewed every three years, according to the latest government directive.</span>
